
Why is it required that you need your tank to mature for 1 year (Crox) or a couple of years (Jhale) if you want to buy clams?
Because clams are a delicate animal and need good lighting and water quality. Once your tank is established you have matured as a reefer and have taken the time to research and learn how to properly take care of the animal. Or you can buy 1 or 2 and put them in a tank and have them die and then go out and buy more and have them die and then you can buy more........ The cycle goes on until you get it right. Is that fair to the animals that you are killing?
Thanks Deanos its an excellent link but I didn't see anything about the length of time to establish your tank before you buy a clam.
No, at the bottom of that linked page are several more concerning the care of Tridacnids.
I don't know ... from reading the giant clam book, I don't necessarily think you need to wait 1 - 2 years before you get a clam. I mean, clams actually work as biofilters and use nitrates in a system.
I would say that as long as:
1) your tank is cycled;
2) you have adequate lighting;
3) you are on top of your trace element replacement (dosing, water changes);
4) you have stable temperature/salinity/pH;
5) you have read the clam book
you could keep clams in your aquarium.
I'm sure I'll get flamed for posting this, and I am certainly not advocating that Zuska go out and pack his tank with clams (especially considering his lack of research on the topic). But I think that anyone who practices responsible husbandry with their corals and fish can probably get a clam once their tank is seeded and running with some stability.
The 6-month, one year, two years 'maturing process' has as much to do with the person keeping the reef as it does with the reef tank itself. A person with less than a year's experience in the hobby should probably not attempt to keep animals that require excellent husbandry. Most people in that situation simply don't have the experience needed to succeed.
To answer your question, a lot goes on in terms of establishing a tank long after the intial cycle is complete. Live rock continues to 'cure' (ie things still decomposing, useful bacteria colonies growing), etc. Young tanks, even after they have cycled, are more unstable than older tanks. If you add an animal that needs stable tank parameters, you need to wait a while.
